Claw bar



Nov. 11 192 w. A. BUMP CLAW BAR Filed y 24, 1922 c haw/d K I WITNESS: u v. INVENTOR. 1 12?- fiWJ/z/flAQ/ I ATTORNEY.

Patented Nov. 11, 1924.

VIILSO'N A. BUMP, OF PITTSFIELD, MASSACHUSETTS.

CLAW BAR.

Application filed May 24, 1922. Serial in 563,301.

T 0 all whom it may concern:

Be it known that VVILSON A. BUMP, a citizen of the United States, residing at Pittsfield, in the county of Berkshire and State of lvlassachusettsehas invented certain new and useful Improvements in Claw Bars, of which the following is a specification, reference being had to the accompanying drawing.

This invention refers to tool bars and more particularly to those known more specifically as claw bars. It has among its objects to provide a claw bar that can be used for railroad construction work for the removal of spikes, and in such a manner as to not injure the spike; to provide a barb hav ing ample leverage that will make the use of the bar relativelyeasy; to provide a bar that will readily wedge itself into place in use and be capable of being placed readily when used in the usual manner; and many other objects that will become apparent as the invention is more fully set forth.

The usual claw bar used in railway work has certain inherent disadvantages which are becoming more apparent as the cost of material and of labor rises. These claw bars require the use of additional pieces to make them complete their work, such as the placing of blocks under the heel. They also .bend the spikes into a curved shape as they are pulled out of the tie or sleeper, and they are more or less laborious to use. This invention avoids these objections in providing a bar that is provided with a circular heel acting along an angle centered outside of he shank of the bar and terminated with a toe bent from the arc of the hump exteriorly to its tangent. The heel is provided with an angular face that cuts off the upper portion of the heel. The heel provides a leverage that act continuously as the claw bar is used thus avoiding the use of pieces to raise the leverage after the bar is worked. The toe catches the head of the nail and while raising it keeps 1t in the vertical line so that the nail or spike is not bent and can be used again. The straight pulling out of the spike serves to prevent the spike from enlarging the hole and ruining the tie. The bar also has an offset handle end that serves as stop to prevent the hand of the operator beng injured by the bar on the tie. The heel also weights the end of the bar and gives it a blow of more wedging power when placed or thrown into the work. The face of the heel enables the user to press his foot or hit with a hammer on the bar when desirable. All these features not only render the work of the tool more useful and efficient but enable it to do" the work in a manner easier upon the workman, and greatly increases his capacity.

In the drawings which illustrate by way of example an embodiment of the invention:

Figure 1 represents a side view of the claw bar embodying the invention.

Figure 2 is a front view of the modification shown in Figure 1.

Figure 8 is a detail of the head of the claw bar.

Similar reference characters refer to simi lar parts throughout the drawings.

In the construction shown, 1 represents a conventional claw bar handle having at its working end a heel 2 which is preferably shaped as shown in the drawings, and on which various dimensions are shown to indicate one particular design of the same, and to enable the features of the invention to be more readily followed. The heel has a face 8 that is angularly arranged whereby it may be stamped upon to force the toe 4 of the device more into its work under the head of a spike. The toe is projected from the heel in a form that meets the heel arc like a cutting circle and causes the toe to project at a more pronounced angle to the bar as indicated in the drawings. The front portion of the toe curves into the face of the bar with a gradual sweep 5 that conforms with the curve of the toe and of the heel toprovide ample structural strength for both.

The other end 6 of the bar is provided with a conventional chisel end angularly pointed and also to enable the claw bar to be readily grasped and pulled on a direct moment line.

In using the bar, it is picked up by the operator and thrown at the under portion of the spike head. The toe forces its way under the head. The operator, then presses his foot on the face of the heel and forces the toe in further if necessary until the whole toe is caught under the head of the spike. The shank of the bar is rotated on the are of the heel and the spike is pulled perpendicularly out of the tie, and can be used again if not already premutilated.

FIQEQ I The jaws of the toeareshown at 7 and may be of any general conventional form suitable for the purpose. Preferably the wedging form shown is used as it tends"v to cling more tightly to the body of the spike.

YVhile but one shown in the drawings, it is not desired to limit this application for patent to that par ticular form, nor in any other way otherwise than limited by the prior art, as it is well. understood that many modifications of the construction could be made that would come within the principles of this invention and the appended claims.

Having thus described the invention what is claimed is:

l. A claw-bar for removing railroad spikes and the like, comprising in combination, a shank bar with one end portion provided with a handle, and the other end por tion with an engagement head, said head having a transversely swelling body with the front front of the shank bar and having a spikehead-receiving recess therein, the said curvilinear portion having an arc of about 49 degrees, and an integral hump in rear of the form of the invention is portion curvilinearly projecting in toe portion and projecting in rear of the shank bar adapted to provide a rolling fulcrum for the bar on an arc of about 71 de grees whereby the spike acted upon by the toe will be pulled out without bending thereof or enlarging the hole from which it is taken substantially as described.

2. A clawbar of the class described comprising a shank, a handle for. the shank, an engaging head on the shank and integrally connected therewith having a front face tangentially proceeding from the face of the shank for forty-nine degrees and a toe for engaging spikes thereon, said toe being disposed at an angle of sixty-four degrees from the center line of the sliank, and an integral rolling fulcrum in rear of the toe and shank having an arc of seventy-one degrees, and a face from the humpslanting back to the rear of the shank substantially as described.

In testimony whereof I hereunto affix my signature in the presence of twowitnesses.

WILSON A. BUMP Witnesses:

FRED. SOHAUBLE, HARRY T. BARDWELL. 

